Monthly Climate Summary for August 2007 at Hampstead

home

daily

Dull and wet 13th-24th, otherwise dry with long sunny periods. Rather cool.

back

forward

Overall mean temperature was

16.4

ºC

which is

-0.8

degC

compared with the 1971-2000 average

Mean day maximum (09-21) was

20.6

ºC

Mean night minimum (21-09) was

12.2

ºC

Mean 24hr maximum (09-09) was

20.6

ºC

which is

-1.2

degC

compared with the 1971-2000 average

Mean 24hr minimum (09-09) was

12.2

ºC

which is

-0.4

degC

compared with the 1971-2000 average

Highest day max was

28.9

ºC

on  the

5

Lowest day max was

14.8

ºC

on  the

22

Highest night min was

15.4

ºC

on  the

15

Lowest night min was

9.2

ºC

on  the

17

Lowest grass min was

4.7

ºC

on  the

10

Total rainfall this month was

55.4

mm

which is

89.4

per  cent

of the 1971-2000 average

Highest daily fall was

12.8

mm

on  the

18

Number of hours with rain was

64.0

hrs

Equiv. TSR rainfall duration was

44.8

hrs

which is

131.8

per  cent

of the 1971-2000 average

Highest no of wet hrs

11.0

hrs

on  the

18

Highest equiv duration

9.1

hrs

on  the

18

Mean rainfall intensity

1.24

mm/h

Total sunshine this month was

161.8

hrs

which is

94.1

per  cent

of the 1971-2000 average

Equiv. C/S sunshine total was

178.0

hrs

which is

94.1

per  cent

of the 1971-2000 average

Highest daily sun was

11.5

hrs

on  the

4

Maximum  snow depth  was

0.0

cm

on the

Mean sea-level pressure at 09Z

1017.1

mbar

which is

0.8

mbar

compared with the 1961-1990 average

Highest pressure at 09Z

1030.4

mbar

on  the

26

Lowest  pressure at 09Z

997.4

mbar

on  the

15

Number of days with:

Air Frost

0

0.2mm rain

15

No  sun

4

Snow lying

0

Grnd Frost

0

1.0mm

10

3h  sun

20

Snow/sleet

0

Max < 0ºC

0

5mm

4

6h  sun

16

Hail

0

Max > 10

31

10mm

1

9h  sun

8

Thunder

0

Max > 20

17

25mm

0

12h sun

0

Fog at 09Z

0

Max > 30

0

15h sun

0

Gale

0

Notable events during the month: